html{
    font-family: "Noto Sans SC", serif;
    color: white;
    background-image: url('../res/background.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
@media (max-width: 600px) {
    html{
        font-size: 16px;
    }
}
body{
    display: flex;
    flex-direction: column;
    align-items: center;
}
.glass{
    background: rgba(0,0,0,0.25);
    backdrop-filter: blur(3px);
    border-radius: 5px;
}
.top-item{
    flex: 1;
    cursor: default;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}
.top-item:hover{
    opacity: 0.7;
}
.top-item:active{
    opacity: 0.3;
}